{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:04:13.931872", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2025-Mar-24_to_2025-Apr-02_350.0_11.5"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2025030002338}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "March 24 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 02 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 10}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 69451.39442254897}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Guinea", "Mali"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "Africa"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 11.5}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 350.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "350.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 348.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 351.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 10.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 14.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-11.25, 12.5], [-11.15, 12.75], [-11.18, 12.82], [-11.53, 12.97], [-11.75, 13.5], [-11.65, 13.75], [-11.75, 14.0], [-11.65, 14.25], [-11.75, 14.5], [-11.53, 15.03], [-11.0, 15.25], [-10.47, 15.03], [-10.32, 14.68], [-10.25, 14.65], [-10.0, 14.75], [-9.75, 14.65], [-9.5, 14.75], [-8.97, 14.53], [-8.75, 14.0], [-8.97, 13.47], [-9.5, 13.25], [-8.97, 13.03], [-8.75, 12.5], [-8.85, 12.25], [-8.82, 12.18], [-8.47, 12.03], [-8.25, 11.5], [-8.35, 11.25], [-8.25, 11.0], [-8.35, 10.75], [-8.25, 10.5], [-8.47, 9.97], [-9.0, 9.75], [-9.53, 9.97], [-9.68, 10.32], [-9.75, 10.35], [-10.0, 10.25], [-10.25, 10.35], [-10.5, 10.25], [-10.75, 10.35], [-11.0, 10.25], [-11.53, 10.47], [-11.68, 10.82], [-12.03, 10.97], [-12.25, 11.5], [-12.03, 12.03], [-11.5, 12.25], [-11.07, 12.07], [-11.25, 12.5]], [[-9.75, 13.35], [-9.82, 13.32], [-9.85, 13.25], [-9.8, 13.12], [-9.5, 13.25], [-9.75, 13.35]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "Western-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of 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"mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.9458438386705499}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.218591732449, 32.400682915581626, 32.60162353515631, 32.988149955055974, 32.916337161594015, 33.276228841145894, 34.04771866571349, 34.937752024332724, 35.56853524667247, 30.979112243652366]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.09999364217123, 33.02090861002608, 33.27234293619796, 33.76982905069991, 33.952273305257165, 35.25523274739584, 36.3095362345378, 37.570625559488974, 37.46419677734377, 30.979112243652366]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.75061674044764, 1.8729885596545728, 1.7665309980658095, 1.8584647774898608, 1.7830742050412975, 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